Heat emission control in radiator heater matrix
AssigneeThe Warming Surfaces Company Oy
InventorsTerho KOLOLUOMA, Jarno VEHMAS
Life of this patent
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Abstract
The present invention relates to a heater matrix and a method to manufacture a heater matrix comprising a plurality of heater pixels and electrical connections for the heater pixels. Each of said heater pixels comprises a resistive pattern attached on a face of a substrate or embedded in a substrate, wherein the resistive pattern is made of a layer of first conductive material and the resistive pattern has a first resistivity. Said electrical connections comprise electrical wiring attached on the face of the substrate or embedded in the substrate, wherein the electrical wiring is made of a layer of second conductive material and the electrical wiring has a second resistivity, the second resistivity being lower than the first resistivity.
Claims12
A heater matrix comprising a plurality of heater pixels and electrical connections for the heater pixels,
- wherein each of said heater pixels is a resistive pattern attached on a face of a substrate or embedded in a substrate, wherein the resistive pattern is made of a layer of first conductive material and the resistive pattern has a first resistivity,
- and said electrical connections comprise electrical wiring attached on the face of the substrate or embedded in the substrate, wherein the electrical wiring is made of a layer of second conductive material and the electrical wiring has a second resistivity, the second resistivity being lower than the first resistivity,
- characterized in that said electrical connections comprise a plurality of connecting bridges, each connecting bridge providing an electrical connection between at least one heater pixel and the electrical wiring, and each connecting bridge being electrically connected to said at least one heater pixel and to the electrical wiring by soldering, mechanical electrical connectors, anisotropic conductive film (ACF), anisotropic conductive paste (ACP), isotropic conductive film (ICF) and isotropic conductive adhesive (ICA).
A method of manufacturing a heater matrix comprising a plurality of heater pixels and electrical connections for the heater pixels, the method comprising:
- patterning a layer of a first conductive material on a substrate or on a first sacrificial carrier to form a plurality of heater pixels, the patterned layer of first conductive material having a first resistivity;
- patterning a layer of a second conductive material on the substrate or on the first or on a second sacrificial carrier to form electrical wiring, the patterned layer of second conductive material having a second resistivity, the second resistivity being lower than the first resistivity;
- if the first sacrificial carrier and/or first and second sacrificial carriers are used for patterning, transferring the plurality of heater pixels and/or the electrical wiring from the respective sacrificial carrier to the substrate;
- characterized in that the method comprises:
- attaching a plurality of connecting bridges on the substrate, wherein said attaching comprises electrically connecting the plurality of heater pixels to the electrical wiring via said connecting bridges, and wherein said attaching comprises electrically connecting said connecting bridges to at least one heater pixel and to the electrical wiring by any one of soldering, mechanical-electrical connectors, anisotropic conductive film (ACF), anisotropic conductive paste (ACP), isotropic conductive film (ICF) and isotropic conductive adhesive (ICA).
Dependencies are inferred from the claim text.